of sovas. his remains were discovered in 1994. they are suggesting his wife killed him. >>> pope francis is set to be officially installed in just a couple hours. earlier he met with the president of argentina, a woman he once clashed with. there rome on the preparations for the inauguration mass. >> reporter: sounds of tractors, as workers set up barriers inside, all part of the last minute preparations for the inauguration mass for pope francis, the new head of the catholic church along with barriers, plenty of police providing security not just for the pope, but the more than 100 leaders from around the world here to witness the historic event. that group including vice president biden, the first catholic to hold the office. meeting with italian heads of state before witnessing the ceremony tomorrow. pope francis meeting with argentinean president, although the two clashed over certain social issues while he was the archbishop of buenos aries it was all thanks today. inside the vatican, officials unvailing the papal ring and coat of arms. >> the ceremony will start at the tomb of st.